Mounting structure, battery box and electric device

Abstract

The utility model relates to the technical field of batteries, and provides a mounting structure, a battery box and an electric device. The mounting structure is used for fixing an end plate in a battery box and comprises a first mounting plate and a second mounting plate, the first mounting plate is a U-shaped plate, and the top of the U-shaped plate is used for fixing the end plate; the U-shaped plate is provided with a containing space and an opening, and the opening is located in the bottom of the containing space. The second mounting plate is arranged in the accommodating space of the first mounting plate and is fixed relative to the first mounting plate; the second mounting plate comprises two first plate bodies which are oppositely arranged and two second plate bodies which are oppositely arranged, and the first plate bodies and the second plate bodies are sequentially and alternately arranged and are sequentially connected to form a mouth-shaped structure. According to the mounting structure, the connection state between the end plate and the box body of the battery box can be optimized, so that the mounting stability of the end plate in the battery box can be improved, and the safety performance of the battery box is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a mounting structure, a battery box and an electrical device. Background Art

[0002] When fixing the battery module in the battery box, the battery module is generally fixed to the body of the battery box through a connector, such as fixing the battery module to the bottom plate through a connector. Under dynamic load conditions, the stress of the bottom plate near the connector is high. After working for a long time, the bottom plate is prone to large deformation or even tearing cracks.

[0003] Therefore, there is an urgent need to provide a mounting structure that can optimize the connection state between the end plate and the body of the battery box. Utility Model Content

[0004] The utility model provides a mounting structure, a battery box and an electrical device. The mounting structure can optimize the connection state between the end plate and the box body of the battery box, thereby improving the installation stability of the end plate in the battery box to improve the safety performance of the battery box.

[0005] In order to achieve the above object, the utility model provides the following technical solutions:

[0006] According to a first aspect of the utility model, a mounting structure is provided for fixing an end plate in a battery box, comprising: a first mounting plate and a second mounting plate, wherein:

[0007] The first mounting plate is a U-shaped plate, the top of the U-shaped plate is used to fix the end plate; the U-shaped plate has a receiving space and an opening, and the opening is located at the bottom of the receiving space;

[0008] The second mounting plate is placed in the accommodating space of the first mounting plate and fixed relative to the first mounting plate; the second mounting plate includes two first plate bodies arranged opposite to each other and two second plate bodies arranged opposite to each other, the first plate bodies and the second plate bodies are arranged alternately in sequence and connected in sequence to form a mouth-shaped structure.

[0009] According to the second aspect of the utility model, a battery box is provided, comprising an end plate and a mounting structure provided by any technical solution in the first aspect above, wherein the end plate is located on the top of the first mounting plate in the mounting structure, and the end plate is fixed to the first mounting plate and the second mounting plate in the mounting structure.

[0010] According to a third aspect of the utility model, there is provided an electrical device, comprising a battery box as provided by any technical solution in the second aspect above.

[0011] In the mounting structure provided by the present application, the end plate is placed on one side of the first mounting plate to be fixed on the surface of the mounting structure, wherein the second mounting plate is used in conjunction with the first mounting plate to reinforce the end plate in the box body and improve the fixing effect of the end plate. At the same time, since the second mounting plate is used in conjunction with the first mounting plate, the fixed position of the end plate and the mounting structure is not easily deformed and will not produce tearing cracks.

[0012] Specifically, the first mounting plate in the mounting structure is a U-shaped plate, and the U-shaped plate has two side plates arranged opposite to each other. This structure can improve the stability of the first mounting plate after being assembled inside the box, and thus improve the stability of the end plate in the box. At the same time, the second mounting plate in the mounting structure is located in the accommodating space of the first mounting plate. This structural setting ensures that the second mounting plate does not occupy space alone in the box, controls the overall size of the mounting structure to be small, and can improve the space utilization rate in the box. Accordingly, the mounting structure can be used in environments where the battery module arrangement spacing is small or the space size is tight, and the installation space is limited, and the mounting structure can strengthen the support for the battery module to prevent the battery module from being greatly deformed after long-term operation.

[0013] In addition, the structural setting in the present application makes the structure of the installation structure simple, which can reduce the difficulty of assembly, facilitate the assembly and electrical installation of the battery module, and reduce the preparation cost.

[0014] Therefore, the installation structure can optimize the connection state between the end plate and the body of the battery box, thereby improving the installation stability of the end plate in the battery box, thereby improving the safety performance of the battery box. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to better understand the present disclosure, reference may be made to the embodiments shown in the following drawings. The components in the drawings are not necessarily to scale, and related elements may be omitted in order to emphasize and clearly illustrate the technical features of the present disclosure. In addition, related elements or components may have different arrangements as known in the art. In addition, in the drawings, the same reference numerals represent the same or similar components in each drawing. Among them:

[0016] Figure 1 A schematic diagram of the structure of a battery box provided in an embodiment of the present application;

[0017] Figure 2 for Figure 1 Structural diagram of the middle part structure;

[0018] Figure 3 A schematic diagram of the structure of the installation structure provided in the embodiment of the present application;

[0019] Figure 4 for Figure 3 A schematic diagram of the structure of the second mounting plate;

[0020] Figure 5 for Figure 4 A schematic diagram of the structure of the second mounting plate at another angle;

[0021] Figure 6 for Figure 4 A cross-sectional view of the second mounting plate after being assembled with the first mounting plate;

[0022] Figure 7 Another structural schematic diagram of the second mounting plate in the mounting structure provided in the embodiment of the present application;

[0023] Figure 8 for Figure 7 A cross-sectional view of the second mounting plate after being assembled with the first mounting plate;

[0024] Fig. 9 A further structural schematic diagram of the second mounting plate in the mounting structure provided in the embodiment of the present application;

[0025] Fig.10 for Fig. 9 A schematic diagram of the structure of the second mounting plate at another angle;

[0026] Fig.11 for Fig. 9 The assembly structure diagram of the second mounting plate and the first mounting plate;

[0027] Fig.12 for Fig. 9 A cross-sectional view of the second mounting plate after being assembled with the first mounting plate;

[0028] Fig.13 for Fig. 9 Another cross-sectional view of the assembly of the second mounting plate and the first mounting plate.

[0029] The following are the descriptions of the reference numerals:

[0030] 100. Mounting structure; 110. First mounting plate; 111. U-shaped plate; 112. Support edge; 113. First mounting hole; 120. Second mounting plate; 121. First plate body; 122. Second plate body; 123. Second positioning hole; 124. Second mounting hole; 125. Process hole; 126. Elastic part; 1261. First part; 1262. Second part; 127. Window; 130. Fixing assembly; 200. End plate; 300. Battery module; 400. Bottom plate; 500. Fastening assembly; 510. Bolt; 520. Nut. DETAILED DESCRIPTION

[0031] The following will be combined with the accompanying drawings in the exemplary embodiments of the present disclosure to clearly and completely describe the technical solutions in the exemplary embodiments of the present disclosure. The exemplary embodiments described herein are only for illustrative purposes and are not intended to limit the scope of protection of the present disclosure. Therefore, it should be understood that various modifications and changes can be made to the exemplary embodiments without departing from the scope of protection of the present disclosure.

[0032] In the description of the present disclosure, unless otherwise clearly specified and limited, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance; the term "plurality" refers to two or more; the term "and / or" includes any and all combinations of one or more associated listed items. In particular, reference to "the / the" object or "an" object is also intended to indicate one of a possible plurality of such objects.

[0033] Unless otherwise specified or explained, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, an integral connection, an electrical connection, or a signal connection; "connection" can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in this disclosure can be understood according to specific circumstances.

[0034] Further, in the description of the present disclosure, it should be understood that the directional words such as "upper", "lower", "inner", "outer" and the like described in the exemplary embodiments of the present disclosure are described at the angles shown in the accompanying drawings and should not be understood as limitations on the exemplary embodiments of the present disclosure. It should also be understood that, in the context, when it is mentioned that an element or feature is connected to another element (one or more) "upper", "lower", or "inner", "outer", it can not only be directly connected to the other (one or more) elements "upper", "lower", "inner", "outer", but also can be indirectly connected to the other (one or more) elements "upper", "lower", "inner", "outer" through an intermediate element.

[0035] The present application embodiment provides a battery box. Please refer to Figure 1 and Figure 2 In the structure shown, the battery box includes a mounting structure 100 and an end plate 200. It is worth noting that the mounting structure 100 in the battery box provided in the embodiment of the present application can be the mounting structure 100 provided in any of the following technical solutions.

[0036] Please combine Figures 3 to 13 refer to Figure 1 and Figure 2, the end plate 200 is located on the top of the first mounting plate 110 in the mounting structure 100, and the end plate 200 is fixed to the first mounting plate 110 and the second mounting plate 120 in the mounting structure 100. Accordingly, the end plate 200 in the battery box provided in the embodiment of the present application is fixed by the mounting structure 100 to improve the stability of the end plate 200 in the battery box.

[0037] It is worth noting that the end plate 200 is specifically installed inside the battery box body. Exemplarily, the end plate 200 can be installed on the bottom plate surface through the mounting structure 100.

[0038] In one embodiment, please continue to refer to Figure 1 In the structure shown, the battery box provided in the embodiment of the present application further includes a battery module 300 and a bottom plate 400, the bottom plate 400 having a support surface; the battery module 300, the mounting structure 100 and the end plate 200 are all placed on the support surface. It should be understood that the side of each structural member close to the bottom plate 400 can be called the bottom, and correspondingly, the side of each structural member away from the bottom plate 400 can be called the top.

[0039] It is worth noting that when the battery module 300 is installed on the bottom plate 400, the bottom plate 400 is generally in a flat state, and there may be a height difference greater than 0 between the bottom of the end plate 200 and the supporting surface. For example, the height difference may be greater than 20 mm. The mounting structure 100 in this embodiment can compensate for the height difference between the bottom of the end plate 200 and the supporting surface in the vertical direction. Figure 1 As shown, it can also be understood that: there is a distance between the top of the first mounting plate 110 and the supporting surface, and the distance is greater than 0.

[0040] It should be noted that in the battery box provided in the embodiment of the present application, the end plate 200 is placed on one side of the first mounting plate 110 to be fixed on the surface of the mounting structure 100, wherein the second mounting plate 120 is used in conjunction with the first mounting plate 110 to reinforce the end plate 200 in the box and improve the fixing effect of the end plate 200. At the same time, since the second mounting plate 120 is used in conjunction with the first mounting plate 110, the fixed position of the end plate 200 and the mounting structure 100 is not easily deformed and will not produce tearing cracks.

[0041] like Figure 3 As shown, the embodiment of the present application provides a mounting structure 100. The mounting structure 100 is used to fix the end plate 200 in the battery box, including: a first mounting plate 110 and a second mounting plate 120, wherein: Figure 3As shown, the first mounting plate 110 is a U-shaped plate 111, the top of the U-shaped plate 111 is used to fix the end plate 200; the U-shaped plate 111 has a receiving space and an opening, and the opening is located at the bottom of the receiving space; the second mounting plate 120 is placed in the receiving space of the first mounting plate 110 and fixed relative to the first mounting plate 110; Figure 4 and Figure 5 As shown, the second mounting plate 120 includes two first plates 121 and two second plates 122 that are oppositely disposed. The first plates 121 and the second plates 122 are alternately arranged and sequentially connected to form a mouth-shaped structure.

[0042] In the mounting structure 100 provided in the embodiment of the present application, the end plate 200 is placed on one side of the first mounting plate 110 to be fixed on the surface of the mounting structure 100, wherein the second mounting plate 120 is used in conjunction with the first mounting plate 110 to reinforce the end plate 200 in the box body and improve the fixing effect of the end plate 200. At the same time, since the second mounting plate 120 is used in conjunction with the first mounting plate 110, the fixing position of the end plate 200 and the mounting structure 100 is not easily deformed and will not produce tearing cracks.

[0043] Specifically, the first mounting plate 110 in the mounting structure 100 is a U-shaped plate 111 having two side plates arranged opposite to each other. This structure can improve the stability of the first mounting plate 110 after being assembled inside the box, thereby improving the stability of the end plate 200 inside the box.

[0044] At the same time, the second mounting plate 120 in the mounting structure 100 is located in the accommodation space of the first mounting plate 110. This structural setting makes the second mounting plate 120 not occupy a separate space in the box, and the overall size of the mounting structure 100 is controlled to be small, which can improve the space utilization rate in the box. The mounting structure 100 can be applied to environments where the battery modules 300 are arranged at small spacing or the space size is tight and the installation space is limited, and the mounting structure 100 can strengthen the support for the battery module 300 to prevent the battery module 300 from being greatly deformed after long-term operation.

[0045] In addition, this structural arrangement makes the structure of the mounting structure 100 simple, can reduce the difficulty of assembly, facilitate the assembly and electrical installation of the battery module 300, and reduce the manufacturing cost.

[0046] Therefore, the mounting structure 100 can optimize the connection state between the end plate 200 and the body of the battery box, thereby improving the installation stability of the end plate 200 in the battery box, thereby improving the safety performance of the battery box.

[0047] It is worth noting that in the mounting structure 100 provided in the embodiment of the present application, the number of the second mounting plates 120 can be one or more. As an example, the number of the second mounting plates 120 is one, and the second mounting plate 120 cooperates with the first mounting plate 110 to effectively fix the end plate 200. Alternatively, the number of the second mounting plates 120 is multiple, and the multiple second mounting plates 120 are arranged at intervals along the length direction of the first mounting plate 110 to reinforce different fixing positions of the first mounting plate 110 and the end plate 200.

[0048] It is understandable that when there is only one second mounting plate 120, the number of structural parts in the battery box can be reduced to reduce the difficulty of assembly. When there are multiple second mounting plates 120, the use of multiple second mounting plates 120 can enhance the fixing effect of the first mounting plate 110, so that each second mounting plate 120 can effectively reinforce the first mounting plate 110 at the corresponding position.

[0049] In one embodiment, please continue to refer to Figure 3 In the structure shown, support edges 112 are provided on both sides of the U-shaped plate 111 , and the first mounting plate 110 is used to be fixed to the bottom plate 400 of the battery box through the support edges 112 .

[0050] It should be noted that the support edge 112 can increase the contact area between the first mounting plate 110 and the base plate 400 to facilitate fixing the first mounting plate 110 and the base plate 400 and improve the structural stability of the first mounting plate 110 after being fixed to the base plate 400.

[0051] As an example, the first mounting plate 110 is fixed to the bottom plate 400 by welding. Specifically, the connection operation between the first mounting plate 110 and the bottom plate 400 can be completed by welding the support edge 112 and the bottom plate 400.

[0052] In a specific embodiment, the first mounting plate 110 is an integrally formed structure to reduce the difficulty of manufacturing. Exemplarily, the first mounting plate 110 is formed by a plate body through a bending process.

[0053] It is worth noting that the height of the second plate body 122 in the second mounting plate 120 along the vertical direction perpendicular to the bottom plate 400 affects the assembly of the first mounting plate 110 and the bottom plate 400, and affects the reinforcement effect of the second mounting plate 120 on the first mounting plate 110. Preferably, when the first plate body 121 abuts against the top of the accommodation space, the second plate body 122 does not exceed the opening of the U-shaped plate 111, that is, the second mounting plate 120 can be completely placed in the accommodation space, so as to facilitate the fixing operation of the first mounting plate 110 and the bottom plate 400.

[0054] Preferably, the height dimension of the second mounting plate 120 is the same as the depth dimension of the accommodation space. In other words, when the second plate body 122 abuts against the top of the accommodation space, the bottom edge of the second plate body 122 is flush with the opening of the first mounting plate 110, so that when the first mounting plate 110 is installed on the bottom plate 400, the second mounting plate 120 abuts against the bottom plate 400 synchronously, reducing the possibility of tearing or damage at the connection position between the support edge 112 and the U-shaped plate 111.

[0055] In addition, along the arrangement direction of the battery module 300 and the end plate 200, the width dimension of the second mounting plate 120 also affects the reinforcement effect of the second mounting plate 120 on the first mounting plate 110. Preferably, the width dimension of the second mounting plate 120 in this direction is equal to the dimension of the accommodation space in this direction. Accordingly, the second plate body 122 of the second mounting plate 120 respectively supports the side plates of the corresponding U-shaped plate 111, so as to further reduce the possibility of tearing or damage at the connection position between the support edge 112 and the U-shaped plate 111.

[0056] When the second mounting plate 120 is fixed relative to the first mounting plate 110, there are many possible fixing positions of the two. In one embodiment, the second mounting plate 120 is fixed to the top of the accommodation space by the first plate body 121, such as Figures 4 to 6 In another embodiment, the second mounting plate 120 is fixed to the side of the accommodation space through the second plate body 122, such as Figure 7 and Figure 8 shown.

[0057] In one embodiment, the first mounting plate 110 is an aluminum alloy plate; the second mounting plate 120 is a steel plate.

[0058] For example, the steel grade of the second mounting plate 120 may be common low carbon steel or carbon steel, such as HC340LA or Q235.

[0059] The strengthening effect can be achieved by opening positioning holes on the top and side surfaces of the mounting structure 100. In one embodiment, the first mounting plate 110 and the second mounting plate 120 are connected by a fixing assembly 130, and the fixing assembly 130 includes a fixing nut and a fixing screw. It is understandable that Figure 6 The middle fixing assembly 130 only shows the fixing nut.

[0060] The first mounting plate 110 is provided with a first positioning hole (not shown). Figure 4 As shown, the second mounting plate 120 is provided with a second positioning hole 123; a fixing nut is fixed on the side of the second mounting plate 120 away from the first mounting plate 110; the fixing screw passes through the first positioning hole and the second positioning hole 123 from the side of the first mounting plate 110 away from the second mounting plate 120, and is threadedly connected with the fixing nut.

[0061] It is worth noting that due to the difference in material between the first mounting plate 110 and the second mounting plate 120, when the two are connected via the fixing assembly 130, the fixing nut is first welded to the second mounting plate 120 using a welding process, and then threadedly connected to the fixing nut via a fixing screw.

[0062] It should be noted that, compared with the form of simple threaded connection between bolts and nuts and unfixed nuts in the related art, the structural setting in the embodiment of the present application can improve the stability of the first mounting plate 110 and the second mounting plate 120 after connection, so as to improve the reinforcement effect of the second mounting plate 120 on the first mounting plate 110, and further improve the reinforcement effect of the mounting structure 100 on the end plate 200.

[0063] Preferably, the center of the fixing nut coincides with the center of the second mounting hole 124 , so as to facilitate threaded connection between the fixing screw and the fixing nut, thereby reducing assembly difficulty.

[0064] In one embodiment, Figures 9 to 13 In the structure shown, the top surface of a first plate body 121 in the second mounting plate 120 abuts the top of the accommodating space; the bottom surface of another first plate body 121 arranged opposite to the second mounting plate 120 is provided with an elastic portion 126, and the elastic portion 126 extends from the bottom surface of the first plate body 121 in a direction away from the top surface of the first plate body 121, so as to abut the bottom plate 400 of the battery box.

[0065] It should be noted that, when the top of the second mounting plate 120 is fitted with the first mounting plate 110, the elastic portion 126 at the bottom of the second mounting portion can provide a reverse force by being squeezed with the base plate 400, thereby ensuring that there is no large gap between the fitting surfaces of the second mounting plate 120 and the first mounting plate 110, so as to enhance the reinforcement effect of the second mounting plate 120 on the first mounting plate 110.

[0066] In a specific embodiment, the elastic portion 126 is an integral stamping structure extending from the first plate body 121 to reduce the difficulty of manufacturing.

[0067] It is worth noting that the elastic portion 126 prepared by stamping can be understood as a spring sheet.

[0068] like Fig.10 , Fig.12 as well as Fig.13 As shown, the spring piece includes a first portion 1261 and a second portion 1262 , and the first portion 1261 connects the second portion 1262 and the first plate body 121 .

[0069] It is worth noting that the second portion 1262 is used to contact the bottom plate 400 to provide a directional force on the mating surface of the first mounting plate 110 and the second mounting plate 120. Accordingly, it is preferred to set the extension direction of the second portion 1262 parallel to the bottom plate 400 to increase the contact area between the second portion 1262 and the bottom plate 400, so that the reverse force formed between the spring sheet and the bottom plate 400 can fully play its role.

[0070] In one embodiment, the second mounting plate 120 is provided with two elastic portions 126 , and the second portion 1262 of one elastic portion 126 faces the second portion 1262 of the other elastic portion 126 to improve the stability of the second mounting plate 120 after being assembled in the first mounting plate 110 .

[0071] In one embodiment, please continue to refer to Fig. 9 and Fig.10 In the structure shown, among the two oppositely arranged first plates 121 , one first plate 121 is provided with an elastic portion 126 , and the other first plate 121 is provided with a window 127 , and the orthographic projection of the window 127 on the first plate 121 covers the orthographic projection of the elastic portion 126 on the same first plate 121 .

[0072] It is worth noting that the window 127 is used to avoid the elastic portion 126 to facilitate the stamping operation and reduce the difficulty of preparation.

[0073] Please continue to refer to Figure 1 and Figure 2 As shown in the structure, the battery box provided in the embodiment of the present application also includes a fastening assembly 500, and the end plate 200 is fixed to the first mounting plate 110 and the second mounting plate 120 by the fastening assembly 500 to enhance the fastening effect of the end plate 200 on the mounting structure 100 and to achieve a detachable operation between the first mounting plate 110 and the second mounting plate 120.

[0074] It is worth noting that there are many possible structures of the fastening assembly 500. In a specific embodiment, Figure 1 The fastening assembly 500 includes a bolt 510 (such as Figure 2 As shown) and nut 520 (as Figure 6 shown).

[0075] In one embodiment, Fig.11In the structure shown, the first mounting plate 110 is provided with a first mounting hole 113, the second mounting plate 120 is provided with a second mounting hole 124, and the first mounting hole 113 at least partially covers the second mounting hole 124 in the orthographic projection of the second mounting plate 120. The bolt 510 includes a screw rod and a nut provided at one end of the screw rod, the nut abuts against the side of the end plate 200 away from the mounting structure 100, and the screw rod penetrates the end plate 200, the first mounting hole 113 of the first mounting plate 110, and the second mounting hole 124 of the second mounting plate 120; the nut 520 is fixed to the side of the second mounting plate 120 away from the first mounting plate 110, and is threadedly connected to the screw rod.

[0076] It should be noted that, since the screw rod passes through the end plate 200, the first mounting hole 113 of the first mounting plate 110, and the second mounting hole 124 of the second mounting plate 120, the nut 520 and the nut on the screw rod can effectively fix the end plate 200 on the surface of the mounting structure 100 to improve the stability of the end plate 200 after fixation. At the same time, the structure of the screw rod and the nut can reduce the difficulty of assembly and improve the speed of assembly.

[0077] In addition, the first mounting plate 110 and the second mounting plate 120 may also be snap-connected. In this case, the fastening assembly 500 is specifically a snap-fit ​​structure provided on the first mounting plate 110 and the second mounting plate 120 , and details thereof will not be repeated.

[0078] Preferably, the center of the first mounting hole 113 coincides with the center of the second mounting hole 124 to reduce the difficulty of assembling the fastening assembly 500 .

[0079] It is worth noting that the number of fastening assemblies 500 affects the number of openings on the first mounting plate 110 and the second mounting plate 120. For example, Figure 1 and Figure 2 As shown, each end plate 200 is fixed to the mounting structure 100 by two sets of fastening assemblies 500 , and thus, the first mounting plate 110 needs to be provided with two first mounting holes 113 , and the second mounting plate 120 needs to be provided with two corresponding second mounting holes 124 .

[0080] Similarly, since the materials of the first mounting plate 110 and the second mounting plate 120 are different, when the two are connected by the fastening assembly 500, the nut 520 can be first welded to the second mounting plate 120 using a welding process, and then threadedly connected to the nut 520 through a screw rod.

[0081] It should be noted that, compared with a simple threaded connection between bolts and nuts where the nuts are not fixed, the structural arrangement in the embodiment of the present application can enhance the reinforcement effect of the mounting structure 100 on the end plate 200 .

[0082] It is worth noting that in order to ensure the accessibility of the welding process when welding the nut 520 and the fixing nut, the second mounting plate 120 of the mouth-shaped structure needs to be additionally opened as shown in FIG. Figure 5 , Figure 6 , Figure 7 , Fig.10 as well as Fig.13 The process hole 125 is shown. Specifically, the process hole 125 is used to facilitate the fixing operation of the second mounting plate 120 and the first mounting plate 110 and / or the second mounting plate 120.

[0083] Specifically, Figure 6 In the structure shown, the setting position of the process hole 125 can correspond to the fixing nut in the fixing component 130, so as to facilitate welding the fixing nut on the surface of the second mounting plate 120; or, the setting position of the process hole 125 can correspond to the nut 520 in the fastening component 500, so as to facilitate welding the nut 520 on the surface of the second mounting plate 120.

[0084] The embodiment of the present application also provides an electric device, which includes a battery box provided by any of the above technical solutions.

[0085] It should be noted that in the battery box, the end plate 200 is placed on one side of the first mounting plate 110 to be fixed on the surface of the mounting structure 100, wherein the second mounting plate 120 is used in conjunction with the first mounting plate 110 to reinforce the end plate 200 in the box and improve the fixing effect of the end plate 200. At the same time, since the second mounting plate 120 is used in conjunction with the first mounting plate 110, the fixed position of the end plate 200 and the mounting structure 100 is not easily deformed and will not produce tearing cracks.

[0086] Moreover, the first mounting plate 110 in the mounting structure 100 is a U-shaped plate 111 having two side plates arranged opposite to each other. This structure can improve the stability of the first mounting plate 110 after being assembled inside the box, thereby improving the stability of the end plate 200 inside the box.

[0087] At the same time, the second mounting plate 120 in the mounting structure 100 is located in the accommodation space of the first mounting plate 110. This structural setting makes the second mounting plate 120 not occupy a separate space in the box, and the overall size of the mounting structure 100 is controlled to be small, which can improve the space utilization rate in the box. The mounting structure 100 can be applied to environments where the battery modules 300 are arranged at small spacing or the space size is tight and the installation space is limited, and the mounting structure 100 can strengthen the support for the battery module 300 to prevent the battery module 300 from being greatly deformed after long-term operation.

[0088] In addition, this structural arrangement makes the structure of the mounting structure 100 simple, can reduce the difficulty of assembly, facilitate the assembly and electrical installation of the battery module 300, and reduce the manufacturing cost.

[0089] Accordingly, the service life and safety performance of the electrical device provided in the embodiment of the present application can be improved.

[0090] Those skilled in the art will readily come up with other embodiments of the present disclosure after considering the specification and practicing the utility model disclosed herein. The present disclosure is intended to cover any variation, use or adaptation of the present utility model, which follows the general principles of the present disclosure and includes common knowledge or customary technical means in the art that are not disclosed in the present disclosure. The specification and example embodiments are to be regarded as exemplary only, and the true scope and spirit of the present disclosure are indicated by the appended claims.

[0091] It should be understood that the present disclosure is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from its scope. The scope of protection of the present disclosure is limited only by the appended claims.

Claims

1. A mounting structure for fixing an end plate in a battery box, characterized in that: include: A first mounting plate and a second mounting plate, wherein: The first mounting plate is a U-shaped plate, the top of the U-shaped plate is used to fix the end plate; the U-shaped plate has a receiving space and an opening, and the opening is located at the bottom of the receiving space; The second mounting plate is placed in the accommodating space of the first mounting plate and fixed relative to the first mounting plate; the second mounting plate includes two first plate bodies arranged opposite to each other and two second plate bodies arranged opposite to each other, the first plate bodies and the second plate bodies are arranged alternately in sequence and connected in sequence to form a mouth-shaped structure.

2. The mounting structure according to claim 1, characterized in that: The top surface of one of the first plates in the second mounting plate abuts against the top of the accommodating space; the bottom surface of another of the first plates oppositely arranged in the second mounting plate is provided with an elastic portion, and the elastic portion extends from the bottom surface of the first plate toward a direction away from the top surface of the first plate to abut against the bottom plate of the battery box.

3. The mounting structure according to claim 2, characterized in that: The elastic portion is an integral stamping structure extending from the first plate body.

4. The mounting structure according to claim 3, characterized in that: The elastic part is a spring sheet, and the spring sheet includes a first part and a second part, and the first part connects the second part and the first plate.

5. The mounting structure according to claim 4, characterized in that: The second mounting plate is provided with two elastic parts, and the second part of one elastic part faces the second part of the other elastic part.

6. The mounting structure according to claim 4, characterized in that: Among the two first plates arranged opposite to each other, one first plate is provided with the elastic part, and the other first plate is provided with a window, and the orthographic projection of the window on the first plate covers the orthographic projection of the elastic part on the same first plate.

7. The mounting structure according to any one of claims 1 to 6, characterized in that: The second mounting plate is fixed to the top of the accommodation space through the first plate body; And / or, the second mounting plate is fixed to a side portion of the accommodating space through the second plate body.

8. The mounting structure according to claim 7, characterized in that: The first mounting plate is an aluminum alloy plate; the second mounting plate is a steel plate.

9. The mounting structure according to claim 8, characterized in that: The first mounting plate and the second mounting plate are connected via a fixing assembly, wherein the fixing assembly comprises a fixing nut and a fixing screw; The first mounting plate is provided with a first positioning hole, and the second mounting plate is provided with a second positioning hole; the second mounting plate is fixed with the fixing nut on the side away from the first mounting plate; the fixing screw passes through the first positioning hole and the second positioning hole from the side of the first mounting plate away from the second mounting plate, and is threadedly connected with the fixing nut.

10. The mounting structure according to any one of claims 1 to 6, characterized in that: The first mounting plate is provided with a first mounting hole, the second mounting plate is provided with a second mounting hole, and the first mounting hole is projected on the second mounting plate to at least partially cover the second mounting hole.

11. The mounting structure according to any one of claims 1 to 6, characterized in that: Support edges are provided on both sides of the U-shaped plate, and the first mounting plate is used to be fixed to the bottom plate of the battery box through the support edges.

12. A battery box, characterized in that: It comprises an end plate and a mounting structure as claimed in any one of claims 1 to 11, wherein the end plate is located on the top of a first mounting plate in the mounting structure, and the end plate is fixed to the first mounting plate and the second mounting plate in the mounting structure.

13. The battery box according to claim 12, characterized in that: It also includes a battery module and a base plate, wherein the base plate has a support surface; the battery module, the mounting structure and the end plate are all placed on the support surface, and there is a spacing between the top of the first mounting plate and the support surface, and the spacing is greater than 0.

14. The battery box according to claim 12 or 13, characterized in that: The battery box further includes a fastening assembly, and the end plate is fixed to the first mounting plate and the second mounting plate through the fastening assembly.

15. The battery box according to claim 14, characterized in that: The fastening assembly includes a bolt and a nut, the bolt includes a screw rod and a nut provided at one end of the screw rod, the nut abuts against the side of the end plate away from the mounting structure, the screw rod passes through the end plate, the first mounting hole of the first mounting plate and the second mounting hole of the second mounting plate; the nut is fixed to the side of the second mounting plate away from the first mounting plate and is threadedly connected to the screw rod.

16. An electrical device, characterized in that: Comprising a battery box as described in any one of claims 12-15.

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